EP3770990B1 - Élément de mise en mémoire tampon et module de batterie - Google Patents

Élément de mise en mémoire tampon et module de batterie Download PDF

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Publication number
EP3770990B1
EP3770990B1 EP19196112.7A EP19196112A EP3770990B1 EP 3770990 B1 EP3770990 B1 EP 3770990B1 EP 19196112 A EP19196112 A EP 19196112A EP 3770990 B1 EP3770990 B1 EP 3770990B1
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EP
European Patent Office
Prior art keywords
connecting portion
main body
battery module
buffering
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19196112.7A
Other languages
German (de)
English (en)
Other versions
EP3770990A1 (fr
Inventor
Ruiqi Han
Liangyi WANG
Quan Yang
Lin Ma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Contemporary Amperex Technology Ltd
Original Assignee
Jiangsu Contemporary Amperex Technology Ltd
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Publication of EP3770990A1 publication Critical patent/EP3770990A1/fr
Application granted granted Critical
Publication of EP3770990B1 publication Critical patent/EP3770990B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to the field of battery technology, and particularly relates to a battery module with a buffering member.
  • a battery module typically comprises a plurality of batteries arranged side by side and two end plates respectively positioned at two ends of the plurality of batteries.
  • the two end plates can exert a certain preload toward an inner side of the two end plates to clamp the plurality of batteries.
  • a buffering pad is usually provided between two adjacent batteries.
  • the conventional buffering pad is generally formed as a rectangular annulus structure in one piece (i.e., the buffering pad is formed by cutting off an intermediate portion of a sheet), and the buffering pad formed by such cutting manner causes the waste of the raw material as high as 50% or more, and sometimes even up to 80%, therefore not only the cost of the buffering pad is increased, but also the resource is greatly wasted.
  • the features of the preamble of the independent claim are known from CN 208 955 062 U .
  • Related technology are known from KR 101 298 232 B1 and JP H11 162422 A .
  • an object of the present invention is to provide a battery module with a buffering member, the structure of the buffering member is simple and the buffering member uses less material, thereby maximally improving the utilization rate of the sheet, therefore the cost is reduced and the resource is saved, when the buffering member is applied to the battery module, the buffering member satisfies the swelling force requirement of the battery, thereby ensuring the service life of the battery.
  • the present invention is defined in the independent claim.
  • the buffering member comprises a first member and a second member, and the first member and the second member are spliced together and form a hollow frame structure.
  • the first member comprises a first main body and a first connecting portion
  • the second member comprises a second main body and a second connecting portion.
  • the first main body of the first member and the second main body of the second member face each other in a second direction, and the first connecting portion is cooperated with and fixedly connected to the second connecting portion.
  • the first connecting portion protrudes from the first main body in the second direction
  • the second connecting portion protrudes from the second main body in the second direction
  • the first connecting portion and the second connecting portion face each other in a third direction and are fixedly connected to each other.
  • the first connecting portion abuts against the second main body in the second direction and is fixedly connected to the second main body.
  • the second connecting portion abuts against the first main body in the second direction and is fixedly connected to the first main body.
  • a width of the first connecting portion in a first direction is equal to a width of the first main body in the first direction
  • a width of the second connecting portion in the first direction is equal to a width of the second main body in the first direction.
  • the first connecting portion protrudes from the first main body in the second direction, and the second connecting portion is recessed from a surface of the second main body facing the first main body in the second direction.
  • the first connecting portion is received in the second connecting portion and fixedly connected to the second connecting portion.
  • the second main body abuts against the first main body in the second direction and is fixedly connected to the first main body.
  • Projections of the first connecting portion and the second connecting portion in a third direction each are semicircular; or projections of the first connecting portion and the second connecting portion in the third direction each are triangular; or projections of the first connecting portion and the second connecting portion in the third direction each are trapezoidal.
  • the first member further comprises a third connecting portion, and the third connecting portion is recessed from a surface of the first main body facing the second main body in the second direction.
  • the second member further comprises a fourth connecting portion, and the fourth connecting portion protrudes from the second main body in the second direction. The fourth connecting portion is received in the third connecting portion and fixedly connected to the third connecting portion.
  • the first main body and the second main body each are formed as a C-shaped structure; or the first main body and the second main body each are formed as a L-shaped structure.
  • the present invention further provides a battery module, which comprises a plurality of batteries and the buffering member described above, and the buffering member is provided between two adjacent batteries.
  • the present invention has the following beneficial effects: in the buffering member, because the first member and the second member are independent members, and both of them can be respectively formed by separately cutting a sheet. Moreover, because the first member and the second member each are small in size and simple in structure, and both of them can be rapidly formed by using less material, the whole structure of the buffering member is simple and the buffering member uses less material, thereby maximally improving the utilization rate of the sheet, and further reducing the cost and saving the resource.
  • the buffering member is applied to the battery module, because a hollow portion surrounded by the first member and the second member of the buffering member can release the swelling force generated by the battery in time, the buffering member satisfies the swelling force requirement of the battery, thereby ensuring the service life of the battery.
  • the buffering member can also absorb the assembling tolerances between the batteries in the process of assembling, thereby maximally ensuring the whole assembling dimensional accuracy of the battery module.
  • the terms “first”, “second”, “third” and the like are only used for illustrative purposes and are not to be construed as expressing or implying a relative importance; the term “plurality” means two or more; the terms “connect” and “fix” should be broadly interpreted, for example, the term “connect” can be “fixedly connect”, “detachably connect”, “integrally connect”, “electrically connect” or “signal connect”. The term “connect” also can be “directly connect” or “indirectly connect via a medium”. For the person skilled in the art, the specific meanings of the abovementioned terms in the present invention can be understood according to the specific situation.
  • a battery module of the present invention comprises a buffering member 1, a plurality of batteries 2, an end plate 3, a side plate 4 and an upper cover 5.
  • the plurality of batteries 2 are arranged side by side in a third direction Z, and the buffering member 1 is provided between the two adjacent batteries 2.
  • the end plate 3 is provided as two in number, and the two end plates 3 are respectively provided on two sides of the plurality of batteries 2 in the third direction Z.
  • the side plate 4 is provided as two in number, and the two side plates 4 are respectively provided on two sides of the plurality of batteries 2 in a second direction Y.
  • the end plates 3 and the side plates 4 are connected with each other (e.g., by welding) to clamp and fix the plurality of batteries 2 and the buffering members 1 provided between the two adjacent batteries 2.
  • the upper cover 5 is positioned above the plurality of batteries 2 in a first direction X and fixedly connected to the end plate 3 and/or the side plate 4.
  • the buffering member 1 has elasticity and may be made of an elastic material, and the elastic material may be rubber, foam adhesive, plastic or the like. Referring to FIG. 2 to FIG. 14 , the buffering member 1 comprises a first member 11 and a second member 12, the first member 11 and the second member 12 are spliced together and form a hollow frame structure.
  • the first member 11 may comprise a first main body 111 and a first connecting portion 112.
  • the second member 12 may comprise a second main body 121 and a second connecting portion 122.
  • the first main body 111 of the first member 11 and the second main body 121 of the second member 12 face each other in the second direction Y, and the first connecting portion 112 is cooperated with and fixedly connected to the second connecting portion 122, therefore the first member 11 and the second member 12 are spliced together and form the hollow frame structure.
  • the first member 11 and the second member 12 are independent members, and both of them can be respectively formed by separately cutting a sheet. Moreover, because the first member 11 and the second member 12 each are small in size and simple in structure, and both of them can be rapidly formed by using less material, the whole structure of the buffering member 1 is simple and the buffering member 1 uses less material, thereby maximally improving the utilization rate of the sheet, and further reducing the cost and saving the resource.
  • the buffering member 1 When the buffering member 1 is applied to the battery module, because a hollow portion surrounded by the first member 11 and the second member 12 of the buffering member 1 can release the swelling force generated by the battery 2 in time, the buffering member 1 satisfies the swelling force requirement of the battery 2, thereby ensuring the service life of the battery 2. Moreover, based on the elasticity of the first member 11 and the second member 12 themselves, the buffering member 1 can also absorb the assembling tolerances between the batteries 2 in the process of assembling, thereby maximally ensuring the whole assembling dimensional accuracy of the battery module.
  • the dimensions of the buffering member 1 in the first direction X and the second direction Y may be reasonably determined respectively according to the height dimension and the width dimension of the battery 2, and the dimension of the buffering member 1 in the third direction Z may be calculated according to the assembling gap and the assembling preload of the battery 2 in the battery module.
  • first connecting portion 112 of the first member 11 and the second connecting portion 122 of the second member 12 may be fixedly connected to each other by bonding.
  • bonding it is not limited thereto, and both of them may also be fixedly connected to each other by other manners.
  • the first main body 111 of the first member 11 and the second main body 121 of the second member 12 each may be formed as a C-shaped structure (as shown in FIG. 2 to FIG. 13 ), or the first main body 111 and the second main body 121 each may be formed as a L-shaped structure (as shown in FIG. 14 ).
  • the contour dimensions of the first main body 111 are consistent with the contour dimensions of the second main body 121.
  • the first member 11 and the second member 12 of the buffering member 1 of the present invention will be described in detail below with different embodiments.
  • the first connecting portion 112 of the first member 11 protrudes from the first main body 111 in the second direction Y
  • the second connecting portion 122 of the second member 12 protrudes from the second main body 121 in the second direction Y.
  • the first connecting portion 112 and the second connecting portion 122 face each other in the third direction Z and are fixedly connected to each other (i.e., both of them attached to each other face to face in the third direction Z).
  • first connecting portion 112 and the second connecting portion 122 each can be formed as a flat plate structure, and the structures of the first member 11 and the second member 12 are simple and easy to form, thereby improving the utilization rate of the sheet. Moreover, because the first connecting portion 112 and the second connecting portion 122 can be formed in the same structure, the first member 11 and the second member 12 can be formed in a structure that is completely identical in shape and dimension, thereby ensuring the processing consistency of the first member 11 and the second member 12, therefore the production process is simplified, and the forming efficiency of the first member 11 and the second member 12 is improved.
  • the surfaces of the first connecting portion 112 and the second connecting portion 122 facing each other in the third direction Z may be fixedly connected to each other by a binder.
  • the first connecting portion 112 may abut against the second main body 121 in the second direction Y and be fixedly connected to the second main body 121 by the binder
  • the second connecting portion 122 may abut against the first main body 111 in the second direction Y and be fixedly connected to the first main body 111 by the binder.
  • the first member 11 and the second member 12 simultaneously ensure the binder forces in the third direction Z and the second direction Y, the whole structural strength of the buffering member 1 is ensured.
  • a width of the first connecting portion 112 in the first direction X may be equal to a width of the first main body 111 in the first direction X
  • a width of the second connecting portion 122 in the first direction X may be equal to a width of the second main body 121 in the first direction X, therefore it not only ensures the bonding area of the first member 11 and the second member 12, but also ensures the structural consistency of the first member 11 and the second member 12 in the first direction X.
  • a surface of the first connecting portion 112 in the third direction Z is flush with a surface of the first main body 111 in the third direction Z, and a thickness of the first connecting portion 112 in the third direction Z is less than a thickness of the first main body 111 in the third direction Z.
  • the thickness of the first connecting portion 112 in the third direction Z may be half of the thickness of the first main body 111 in the third direction Z, and a length of the first connecting portion 112 in the second direction Y may be 3-4 times a thickness of the first main body 111 in the third direction Z.
  • a surface of the second connecting portion 122 in the third direction Z is flush with a surface of the second main body 121 in the third direction Z, and a thickness of the second connecting portion 122 in the third direction Z is less than a thickness of the second main body 121 in the third direction Z.
  • the thickness of the second connecting portion 122 in the third direction Z may be half of the thickness of the second main body 121 in the third direction Z, and a length of the second connecting portion 122 in the second direction Y may be 3-4 times a thickness of the second main body 121 in the third direction Z.
  • the first connecting portion 112 may protrude from the first main body 111 in the second direction Y, and the second connecting portion 122 may be recessed from a surface of the second main body 121 facing the first main body 111 in the second direction Y.
  • the first connecting portion 112 is received in the second connecting portion 122 (i.e., the concave-convex fit) and fixedly connected to the second connecting portion 122.
  • first connecting portion 112 and the second connecting portion 122 are concave-convex fitted, and such as concave-convex fit manner not only facilitates rapid positioning between the first connecting portion 112 and the second connecting portion 122, but also improves the cooperating area of the first connecting portion 112 and the second connecting portion 122, thereby improving the bonding strength of the first member 11 and the second member 12 when the first connecting portion 112 and the second connecting portion 122 are fixedly connected to each other by the binder.
  • the second main body 121 may abut against the first main body 111 in the second direction Y and be fixedly connected to the first main body 111 by the binder.
  • the first connecting portion 112 may be provided at two sides of the hollow portion surrounded by the first member 11 and the second member 12 in the first direction X, and the first connecting portion 112 at the same side of the hollow portion in the first direction X may be provided as one or more in number.
  • the second connecting portion 122 may be provided at two sides of the hollow portion surrounded by the first member 11 and the second member 12 in the first direction X, and the second connecting portion 122 at the same side of the hollow portion in the first direction X may be provided as one or more in number.
  • first connecting portion 112 and the second connecting portion 122 on the same side of the hollow portion in the first direction X each are provided as one in number
  • the structures of the first member 11 and the second member 12 are simple, and they are convenient for formation and easy for automated manufacturing.
  • first connecting portion 112 and the second connecting portion 122 on the same side of the hollow portion in the first direction X each are provided as multiple in number
  • the cooperating area of the first connecting portions 112 and the second connecting portions 122 is increased, thereby improving the bonding strength of the first member 11 and the second member 12 when the first connecting portions 112 and the second connecting portions 122 are fixedly connected to each other by the binder.
  • projections of the first connecting portion 112 and the second connecting portion 122 in the third direction Z each may be semicircular (i.e., the first connecting portion 112 is formed as a semi-cylindrical convex structure, and the second connecting portion 122 is formed as a semi-cylindrical concave structure).
  • the surfaces of the first connecting portion 112 and the second connecting portion 122 facing each other each are formed as a curved-surface structure, the cooperating area of the first connecting portion 112 and the second connecting portion 122 is increased, thereby improving the bonding strength of the first member 11 and the second member 12 when the first connecting portion 112 and the second connecting portion 122 are fixedly connected to each other by the binder.
  • a radius of the first connecting portion 112 is equal to a radius of the second connecting portion 122.
  • the radius of the first connecting portion 112 is equal to the thickness of the first main body 111 in the third direction Z.
  • the radius of the second connecting portion 122 is equal to the thickness of the second main body 121 in the third direction Z.
  • projections of the first connecting portion 112 and the second connecting portion 122 in the third direction Z each may be triangular.
  • the width of the first connecting portion 112 in the first direction X is equal to the width of the second connecting portion 122 in the first direction X.
  • the width of the first connecting portion 112 in the first direction X is equal to the thickness of the first main body 111 in the third direction Z.
  • the width of the second connecting portion 122 in the first direction X is equal to the thickness of the second main body 121 in the third direction Z.
  • projections of the first connecting portion 112 and the second connecting portion 122 in the third direction Z each may be trapezoidal.
  • the cooperating area of the first connecting portion 112 and the second connecting portion 122 is increased, thereby improving the bonding strength of the first member 11 and the second member 12 when the first connecting portion 112 and the second connecting portion 122 are fixedly connected to each other by the binder.
  • a width of a narrow side of the first connecting portion 112 in the first direction X is equal to the thickness of the first main body 111 in the third direction Z.
  • the width of the narrow side of the second connecting portion 122 in the first direction X is equal to the thickness of the second main body 121 in the third direction Z.
  • the first member 11 further comprises a third connecting portion 113
  • the second member 12 further comprises a fourth connecting portion 123.
  • the third connecting portion 113 is recessed from the surface of the first main body 111 facing the second main body 121 in the second direction Y, and the fourth connecting portion 123 protrudes from the second main body 121 in the second direction Y.
  • the fourth connecting portion 123 is received in the third connecting portion 113 and fixedly connected to the third connecting portion 113.
  • first connecting portion 112 and the third connecting portion 113 are respectively provided on two sides of the hollow portion surrounded by the first member 11 and the second member 12 in the first direction X
  • the second connecting portion 122 and the fourth connecting portion 123 are respectively provided on two sides of the hollow portion surrounded by the first member 11 and the second member 12 in the first direction X
  • the first connecting portion 112 and the fourth connecting portion 123 can be formed in the same structure
  • the third connecting portion 113 and the second connecting portion 122 can be formed in the same structure
  • the first member 11 and the second member 12 can be formed in a structure that are completely identical in shape and dimension, thereby ensuring the processing consistency of the first member 11 and the second member 12, therefore the production process is simplified, and the forming efficiency of the first member 11 and the second member 12 is improved.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Claims (8)

  1. Module de batterie, comprenant une pluralité de batteries (2) agencées côte à côte dans une troisième direction (Z) et un élément tampon (1), l'élément tampon (1) étant fourni entre deux batteries adjacentes (2),
    caractérisé en ce que
    l'élément tampon (1) comprend un premier élément (11) et un deuxième élément (12), et le premier élément (11) et le deuxième élément (12) sont assemblés par enture et forment une structure en cadre creux ;
    le premier élément (11) comprend un premier corps principal (111) ;
    le deuxième élément (12) comprend un deuxième corps principal (121) ;
    le premier corps principal (111) et le deuxième corps principal (121) sont chacun formés sous la forme d'une structure en C ; ou le premier corps principal (111) et le deuxième corps principal (121) sont chacun formés sous la forme d'une structure en L ;
    le premier élément (11) comprend en outre une première partie de liaison (112) formée à chaque extrémité du premier corps principal (111) ;
    le deuxième élément (12) comprend en outre une deuxième partie de liaison (122) formée à chaque extrémité du deuxième corps principal (121) ;
    le premier corps principal (111) du premier élément (11) et le deuxième corps principal (121) du deuxième élément (12) se font face dans une deuxième direction (Y) perpendiculaire à la troisième direction (Z), et les premières parties de liaison (112) sont amenées à coopérer avec et reliées de manière fixe aux deuxièmes parties de liaison (122), respectivement.
  2. Module de batterie selon la revendication 1, dans lequel
    la première partie de liaison (112) fait saillie depuis le premier corps principal (111) dans la deuxième direction (Y) ;
    la deuxième partie de liaison (122) fait saillie depuis le deuxième corps principal (121) dans la deuxième direction (Y) ;
    la première partie de liaison (112) et la deuxième partie de liaison (122) se font face dans la troisième direction (Z) et sont reliées de manière fixe l'une à l'autre.
  3. Module de batterie selon la revendication 2, dans lequel
    la première partie de liaison (112) vient en butée contre le deuxième corps principal (121) dans la deuxième direction (Y) et est reliée de manière fixe au deuxième corps principal (121) ;
    la deuxième partie de liaison (122) vient en butée contre le premier corps principal (111) dans la deuxième direction (Y) et est reliée de manière fixe au premier corps principal (111).
  4. Module de batterie selon la revendication 2, dans lequel
    une largeur de la première partie de liaison (112) dans une première direction (X) perpendiculaire à la deuxième direction (Y) et la troisième direction (Z) est égale à une largeur du premier corps principal (111) dans la première direction (X) ;
    une largeur de la deuxième partie de liaison (122) dans la première direction (X) est égale à une largeur du deuxième corps principal (121) dans la première direction (X).
  5. Module de batterie selon la revendication 1, dans lequel
    la première partie de liaison (112) fait saillie depuis le premier corps principal (111) dans la deuxième direction (Y) ;
    la deuxième partie de liaison (122) est en retrait par rapport à une surface du deuxième corps principal (121) faisant face au premier corps principal (111) dans la deuxième direction (Y) ;
    la première partie de liaison (112) est reçue dans la deuxième partie de liaison (122) et reliée de manière fixe à la deuxième partie de liaison (122).
  6. Module de batterie selon la revendication 5, dans lequel le deuxième corps principal (121) vient en butée contre le premier corps principal (111) dans la deuxième direction (Y) et est relié de manière fixe au premier corps principal (111).
  7. Module de batterie selon la revendication 5, dans lequel
    des projections de la première partie de liaison (112) et la deuxième partie de liaison (122) dans la troisième direction (Z) sont chacune semi-circulaires ; ou
    des projections de la première partie de liaison (112) et la deuxième partie de liaison (122) dans la troisième direction (Z) sont chacune triangulaires ; ou
    des projections de la première partie de liaison (112) et de la deuxième partie de liaison (122) dans la troisième direction (Z) sont chacune trapézoïdales.
  8. Module de batterie selon la revendication 5, dans lequel
    le premier élément (11) comprend en outre une troisième partie de liaison (113), et la troisième partie de liaison (113) est en retrait par rapport à une surface du premier corps principal (111) faisant face au deuxième corps principal (121) dans la deuxième direction (Y) ;
    le deuxième élément (12) comprend en outre une quatrième partie de liaison (123), et la quatrième partie de liaison (123) fait saillie depuis le deuxième corps principal (121) dans la deuxième direction (Y) ;
    la quatrième partie de liaison (123) est reçue dans la troisième partie de liaison (113) et reliée de manière fixe à la troisième partie de liaison (113).
EP19196112.7A 2019-07-22 2019-09-09 Élément de mise en mémoire tampon et module de batterie Active EP3770990B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921154357.XU CN210040331U (zh) 2019-07-22 2019-07-22 缓冲构件及电池模组

Publications (2)

Publication Number Publication Date
EP3770990A1 EP3770990A1 (fr) 2021-01-27
EP3770990B1 true EP3770990B1 (fr) 2024-04-10

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US (1) US11302995B2 (fr)
EP (1) EP3770990B1 (fr)
CN (1) CN210040331U (fr)
HU (1) HUE067021T2 (fr)
WO (1) WO2021012823A1 (fr)

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CN210040331U (zh) * 2019-07-22 2020-02-07 江苏时代新能源科技有限公司 缓冲构件及电池模组

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US20210028429A1 (en) 2021-01-28
HUE067021T2 (hu) 2024-09-28
CN210040331U (zh) 2020-02-07
US11302995B2 (en) 2022-04-12
EP3770990A1 (fr) 2021-01-27

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